The blue screen is most likely caused by faulty connections between the motherboard and hard drive or by a hard drive that is no longer operational. To solve this problem, the hard drive may need to be reconnected or replaced.

There is no charge left in the battery, so connect the power adapter to the laptop in order to recharge the battery. After 10 minutes, attempt to turn on the computer while leaving the power adapter plugged in. Sometimes the battery will no longer hold charge regardless of how long it is charged. This occurs when laptop batteries have been used for several years. If your battery will no longer hold charge, the only remedy is to purchase a new battery. Most replacement laptop batteries can be bought online or at technology stores. To change the battery, see the Battery Replacement Guide.

The connection between the laptop and the power adapter is broken, therefore the laptop cannot be charged. To fix this problem, you need a new power adapter which can be found online or at most technology stores.

The battery becomes very hot during operation even with a working fan and a dust-free system. This indicates that the battery may need to be replaced. For further information, see the Battery Replacement Guide.

If your screen refuses to activate once the power is turned on, check if the screen is correctly connected to the rest of the system. This can be done using this screen replacement guide and checking the video cable. After you have ensured that the cable is connected, try to power on the device. If this does not fix the issue, you may need a replacement screen.

Excessive dirt or residue on you keyboard may affect how the keys respond when pressed. Liquid can seep into the keys of your keyboard. When it dries, it may leave a sticky residue which can cause keys to become stuck in place. Remove the key cap, clean any dust or residue and snap the key back onto the keyboard.

If the physical keys are missing from your keyboard, the computer may not respond when the key is pressed. Replacement key caps can be bought from technology stores or online. Refer to the repair guide on removing and replacing keys for more help.

Resources

Repairability

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It's time to speak out for your right to repair

We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.

Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!